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All Journal Jurnal Fitopatologi Indonesia Journal of Tropical Soils JTSL (Jurnal Tanah dan Sumberdaya Lahan) AGRIVITA, Journal of Agricultural Science Jurnal Solum Menara Ilmu Jurnal Riset Perkebunan (JRP) Jagur: Jurnal Agroteknologi

. Adrinal

Jurusan Tanah Fakultas Pertanian Universitas Andalas

Author-ID : 657757

Agriculture, Biological Sciences & Forestry Computer Science & IT Education Environmental Science Medicine & Pharmacology

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PHYSICAL CHARACTERISTICS OF ULTISOLS AND THE IMPACT ON SOIL LOSS DURING SOYBEAN (Glycine max Merr) CULTIVATION IN WET TROPICAL AREA Yulnafatmawita, Yulnafatmawita; Adrinal, Adrinal
AGRIVITA, Journal of Agricultural Science Vol 36, No 1 (2014)
Publisher : Faculty of Agriculture University of Brawijaya and Indonesian Agronomic Assossiation

Show Abstract | Download Original | Original Source | Check in Google Scholar

Physical characteristicsare among soil propertiesaffecting the susceptibility to erosion.Â Determination of physical characteristics of Ultisol was aimed to evaluate the dynamics of soil properties as well asthe impact on soil erosion and runoff (RO) during soybean cultivation in wet tropical area.Â Soybean was planted within erosion plots (18 m2)Â at 25% slope in UltisolLimauManis (having > 5000 mm annual rainfall).Â Â Soil samples for physical properties (soil texture, bulk density, total pore, permeability, aggregate stability,and organic carbon) as well as amount of RO and soil loss were analyzed at 5 different times (stages) during the cultivation.Â The results showed that there was fluctuation in physical properties of Ultisol during the cultivation. Likewise, the amount of runoff and soil loss also changed during the study.Â Among the physical properties analyzed, the aggregate stability index of the soil highly correlated to the amount of RO (R2=0.73) and soil loss (R2=0.94).Â Amount of RO and soil loss was controlled by soybean development at the average rainfall intensity â¤ 36 mm/day, but not at rainfall intensity >36 mm/day. Â It is suggested not to open heavily clayey-low OC soils for seasonal crop farming during rainy season in wet tropical area.Â Keywords: soil physical properties, Ultisol, erosion,runoff, soybean cultivation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v36i1.350

Physical characteristicsare among soil propertiesaffecting the susceptibility to erosion. Determination of physical characteristics of Ultisol was aimed to evaluate the dynamics of soil properties as well asthe impact on soil erosion and runoff (RO) during soybean cultivation in wet tropical area. Soybean was planted within erosion plots (18 m2) at 25% slope in UltisolLimauManis (having > 5000 mm annual rainfall). Soil samples for physical properties (soil texture, bulk density, total pore, permeability, aggregate stability,and organic carbon) as well as amount of RO and soil loss were analyzed at 5 different times (stages) during the cultivation. The results showed that there was fluctuation in physical properties of Ultisol during the cultivation. Likewise, the amount of runoff and soil loss also changed during the study. Among the physical properties analyzed, the aggregate stability index of the soil highly correlated to the amount of RO (R2=0.73) and soil loss (R2=0.94). Amount of RO and soil loss was controlled by soybean development at the average rainfall intensity ≤ 36 mm/day, but not at rainfall intensity >36 mm/day. It is suggested not to open heavily clayey-low OC soils for seasonal crop farming during rainy season in wet tropical area. Keywords: soil physical properties, Ultisol, erosion,runoff, soybean cultivation

Keragaman Cendawan Rizosfer dan Potensinya sebagai Agens Antagonis Fusarium oxysporum Penyebab Penyakit Layu Tanaman Krisan Engla Yona Liza; Adrinal Adrinal; Jumsu Trisno
Jurnal Fitopatologi Indonesia Vol 11 No 2 (2015)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Plant rhizosphere is rich of microbes, one of these is a group of fungi. This research aimed to obtain fungi isolates from rhizosphere of healthy Chrysanthemum, followed by evaluation of their potential as biocontrol agents of Fusarium oxysporum. Isolation of fungi rhizosphere was based-on serial dilution method. As many as 6 isolates of rhizosphere fungi was succesfully isolated with diverse characters. Pathogenicity test showed that 6 isolates were not pathogenic because it did not cause wilt symptoms on Chrysanthemum. The selected isolates were subjected to in vitro assay for their potential as biocontrol agents, 4 isolates had antagonist ability (46.42–51.61%) and antibiosis activity against F. oxysporum. Fungi isolates having the potential as biocontrol agents was identified as Trichoderma sp. (2 isolates), Penicillium sp., and Paecillomyces sp.

KARAKTERISTIK DAN KERAGAMAN TANAH KETAPING SELATAN KECAMATAN BATANG ANAI KABUPATEN PADANG PARIAMAN Adrinal Adrinal; Neldi Armon
Jurnal Solum Vol 7, No 2 (2010): JURNAL SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

A study of soil characteristics and soil variation was carried out in Ketaping Selatan, Batang Anai, Padang Pariaman District. The study aimed to identify the characteristics and variation of soil of Ketaping Selatan as a selected village under University of Andalas supervisory. The results indicated that Ketaping Selatan has two soil variations namely Typic Udifluvents and Terric haplosaprists. Both soils are categorized as soils with low fertility and low carrying capacity. It is needed a proper management for enhanching their soil productivity, erspecially for agricultural purposes. Keyword : soil caracteristics, soil variation

KAJIAN SIFAT FISIKA TANAH PADA PERTUMBUHAN TANAMAN MANGGIS (Garcinia mangostana L.) DI KABUPATEN LIMA PULUH KOTA Yulnafatmawita Yulnafatmawita; Adrinal Adrinal; Sudewi Isminingsih
Jurnal Solum Vol 5, No 2 (2008): Jurnal SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

This research was aimed to evaluate physical properties of soils grown by mangosteen crops in Lima Puluh Kota Regency, especially in Kecamatan Payakumbuh and Kecamatan Guguk, in West Sumatra. Soils were sampled by using sample rings for undisturbed and by using soil driller for disturbed samples on 0-20, 20-40, and 40-60 cm soil depth. Soil samples were analyzed in Soil Laboratory Agriculture Faculty, Andalas University, Padang. The results showed that soil texture in two locations was similar, that was silty loam for the 0-40 cm depth, and clay for the 40-60 depth. However, generally soil organic matter content in Guguk was lower than that in Payakumbuh, that was medium to low, BV from low to high, total porosity from high to medium, and permeability from high to slightly slow. Key Words: Soil physical properties, mangostana

PENCUCIAN BAHAN ORGANIK TANAH PADA TIGA PENGGUNAAN LAHAN DI DAERAH HUTAN HUJAN TROPIS SUPER BASAH PINANG-PINANG GUNUNG GADUT PADANG Yulnafatmawita Yulnafatmawita; Adrinal Adrinal; Arief Fauzan Hakim
Jurnal Solum Vol 8, No 1 (2011): Jurnal SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

Study about soil organic matter (SOM) leaching in soil profiles of tropical rain forest was conducted in Bukit Pinang-Pinang, the upper footslope of Mt. Gadut in West Sumatra, and in Soil Physical laboratory Andalas University Padang. Bukit Pinang-Pinang is located on 480-640 m asl and geographically is between 100°29’40” and 100°30’20 E” as well as between 0°54’55” and 0°55’45”S. This rain forest area is known as a super wet area because it receives high annual rainfall (>3500 mm). The objective of this research was to measure the amount of SOM leached from top soil into the deeper soil. Undisturbed soil samples were taken from three different land uses, forest, bush, and mixed garden, on the top, middle, and foot slopes. Undisturbed soil samples were leached with distilled water as the amount of rainfall accepted in natural condition. The results showed that, land use change from forest into ecosystems of mixed garden (for over 50 years with 100% soil surface coverage and without any cultivation) and bush land (for over 20 years left) did not cause the SOM content in the profiles decreased. Amount of SOM leached from the top 0-10 cm was found greater from mixed garden, then followed by forest on the upper slope, forest on the middle slope, and bush area.Keywords: SOM leaching, land use change, tropical rain forest, bush, mixed garden

PERBAIKAN SIFAT FISIKO-KIMIA TANAH PSAMMENT DENGAN PEMULSAAN ORGANIK DAN OLAH TANAH KONSERVASI PADA BUDIDAYA JAGUNG Adrinal Adrinal; Amrizal Saidi; Gusmini Gusmini
Jurnal Solum Vol 9, No 1 (2012): Jurnal SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

A research about amelioration of psycho-chemical of Psamment by using organic mulch and techniques of conservation tillage on corn growth had been conducted in 2009. Field experiment was located in Korong Olo Bangau, Batang Anai, Padang Pariaman Regency. The general objective of the research was to improve fertility of Psamment and to find out the best tillage practice for corn growth based on soil and water conservation rules. The treatment consisted of two factors (3 x 5) which was designed in RBD. The first factor was tillage (No till, Minimum till, convensional till) and the second factor was mulch source (without mulch, Tithonia, Chromolaena, rice straw, and corn straw). Parameters analysed were either soil physical (moisture, BD, total pore, aggregation) or chemical (pH, N, P, and K) properties, as well as crop production. The result showed that both treatments were able to improve soil-physico-chemical properties of Psamment and corn yield. The value of BD decreased, soil organic mattere, total pore, and aggregation increased. Then, the soil pH as well as available P and K tended to increase. The highest yield (dry seeds) was found from combination between minimum tillage and tithonia mulch.Keywords: sifat fisiko-kimia, Psamment, mulksa, olah tanah konservasi, jagung.

PENDUGAAN EROSI TANAH PADA LAHAN BEKAS TAMBANG BATU BINTANG SUB DAS BATANG KALULUTAN DAN SUNGAI IPUH KABUPATEN PADANG PARIAMAN Adrinal Adrinal; Utri Luki; Pedri Kasman
Jurnal Solum Vol 5, No 2 (2008): Jurnal SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

An erosion prediction using Universal Soil Loss Equation (USLE) was conducted from August 2006 to February 2007. The research was aimed to predict amount of soil erosion and erosion risk rate of ex-obsidian mining of Kalulutan and Ipuh River, Padang Pariaman District. The result showed that the highest soil erosion was predicted under ex-obsidian mining (45% slope) namely 2.593 t/ha/y and the lowest was found under mixed farm (3-8% slope), 4,95 t/ha/y. Erosion risk rate of ex-obsidian mining was very heavy whilst for mixed farm varied from light to very heavy. Keyword: erosion prediction, ex-obsidian mining, Sub-catchments area

PENGARUH PEMBERIAN BEBERAPA JENIS BAHAN ORGANIK TERHADAP STABILITAS AGREGAT TANAH ULTISOL LIMAU MANIS Yulnafatmawita Yulnafatmawita; Adrinal Adrinal; Anita Febriani Daulay
Jurnal Solum Vol 5, No 1 (2008): Jurnal SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

A field research about the effect of some sources of organic matter on aggregate stability of Ultisol was conducted in Limau Manis Padang. The research was aimed to investigate the contribution of different sources of organic matter to soil aggregate stability. Field research was arranged in Completely Randomized Block Design (RBD) consisting of 4 treatments (types of organic matter) and 3 replications (blocks). The treatments were : A = Tithonia diversifolia, B = Straw of Oryza sativa, C = Imperata cylindrica, and D = Leucaena glauca. The dosage for each treatment was 20 ton/ha based on dry weight. The result showed that Tithonia diversifolia gave the best contribution in improving soil aggregate stability of Ultisol Limau Manis for the first three (3) months.Keywords : organic matter, aggregate stability, marginal soil.

IDENTIFIKASI SPORA CENDAWAN MIKORIZA ARBUSKULAR (CMA) PADA BERBAGAI RHIZOSFIR PISANG DI LAHAN ENDEMIK Eti Farda Husin; Eri Sulyanti; Adrinal Adrinal; Yefriwati Yefriwati
Jurnal Solum Vol 5, No 2 (2008): Jurnal SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

Banana is one of fruit commodity having been widely cultivated by people and has high potency for agribusiness. However, there are some constraints for the cultivation, such as soil fertility and disease attack. Nowadays, tne main disease causing low banana production in West Sumatra is wilt due to Fusarium. One way being developed to improve banana production in endemic land is by using bioagent. This research was aimed to identify spores of mycorrizhae in several endemic land. The result showed that there were various types of MVA found in tested locations (Agam, Solok, and Padang Pariaman regencies). Glomus was one genus that was always found in each location. Therefore, the glomus sp was quite potential to explore and and proliferation as a good innoculant to improve growth of banana plant. The highest amount of MVA sport found in Padang Pariaman regency (especially in Pasar Usang area) was 195/20 g soil (Glomus), then followed by Acaulospora (121 spora/20 g soil) and Gigaspora (65 spora/20 g soil).Key Words: Banana, Fusarium, Wilt, Bioagent, MVA

Co-Authors . Darmawan . Gusmini . Junaidi Amrizal Saidi Anita Febriani Daulay Arief Fauzan Hakim Asmar Asmar Dewi Rezki Edwin Edwin Engla Yona Liza Eri Sulyanti Erick Wahyudi Eti Farda Husin Giska Oktabriana Gusnidar Gusnidar Herviyanti Herviyanti Irfan Suliansyah Jumsu Trisno Kazuyuki Nishimura Neldi Armon Pedri Kasman Putri, Elsa Lolita Resti Arjuni Santi Ruhaimah Ruhaimah Silvia Herlena Sudewi Isminingsih Suyoko Suyoko Syafrimen Yasin Tomio Itani Utri Luki Yaherwandi Yefriwati Yefriwati Yosi Amnurrahman Yulnafatmawita Yulnafatmawita Yulnafatmawita Yulnafatmawita Yulnafatmawita Yulnafatmawita Yulnafatmawita Yulnafatmawita Yulnafatmawita Yulnafatmawita Yulnafatmawita Yulnafatmawita

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